What is the basic method for creating a grounding electrode system? When is the use of a metal underground water pipe permitted for such a such system?
Section E3608 Grounding Electrode System. Sec E3608.1 Grounding electrode system. All electrode s specified in Sections E3608.1.1, E3608.1.2, E3608.1.3, E3608.1.4, E3608.1.5 and E3608.1.6 that are present at each building or structure served shall be bonded together to form the grounding electrode systems E3608.1.1 Metal underground water pipe. A metal underground water pipe that is in direct contact with the earth for 10 feet or more.
In what locations are arc-fault interrupter protection mandated?
Section E3902 .19 Location of arc-fault circuit interrupters. Arc-fault interrupters shall be installed in readily accessible locations.
Section 3902.20 Arc-fault circuit interrupter protection. Branch circuits that supply 120-volt, single-phase, 15- and 20-ampere outlets installed in kitchens, family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreations rooms, closets, hallways, Laundrys areas and similar rooms or areas shall be protected by any of the following:[ 210,12 A]
What is the purpose and scope of the International Residential Code?
The purpose of the International Residential Code is to regulate the broad spectrum of construction activities associated with residential buildings and structures(IRC R101.2). The scope of the IRC applies to detached one- and two-family dwellings and multiple single-family dwellings not more than three stories above grade plane in height with a separate means of egress and their accessory structures not more than three stories above grade plane in height(IRC R101.2).
When there is a conflict between a general requirement and a specific requirement, which provision shall be applicable? Specific requirement
Where must mechanical exhaust air terminate? What locations are strictly prohibited?
M151.1 Outdoor discharge
The air removed by every mechanical exhaust system shall be discharged to the outdoors in accordance with Section M1504.3. Air shall not be exhausted into an attic, soffit ridge vent or crawl space.
In reference to IRC course writing assignment #11
“What is the maximum permitted length of a clothes dryer exhaust duct? How does the presence of one or more bends affect the allowable length?”
The maximum clothes dryer exhaust vent length is 35 feet as specified in IRC section M1502.4.6.1. The effective length of the vent is shortened when bends or elbows are used by the values specified in IRC table M1502.2.6.1.
How far above the highest connected appliance outlet must a natural draft appliance vent terminate? How far above the bottom of a wall vent must a natural draft gas vent terminate?
Vents for natural draft appliances shall terminate not less than 5 feet (1524 mm) above the highest connected appliance outlet, and natural draft gas vents serving wall furnaces shall terminate at an elevation not less than 12 feet (3658 mm) above the bottom of the furnace.
In what locations are the installation of fuel-fired appliances prohibited? What concerns are applicable to outdoor installations?
G2406.2 (303.3) Appliances shall not be located in sleeping rooms, bathrooms, toilet rooms, storage closets or surgical rooms, or in a space that opens only into such rooms or spaces. Exceptions are noted. G2406.3.6 Outdoor applications-Appliances installed in outdoor locations shall be either listed for outdoor installation or provided with protection from outdoor environmental factor that influence the operability, durability and safety of the appliance.
What is the minimum required extension for a standpipe? The maximum allowable extension? Under what conditions may a laundry tray waste connect to a standpipe for an automatic clothes washer drain? What is the minimum standpipe length?
Standpipes shall extend not less than 18 inches (457 mm) and not greater than 42 inches (1067 mm) above the trap weir. ❖ A standpipe is typically used for capturing the waste flow from a pumped discharge plumbing appliance such as a dishwasher or a clothes washer. The discharge from a laundry tray (laundry tub) is allowed to connect to the clothes washer standpipe if the top of the standpipe is at least 30 inches (762 mm) above the trap weir of the clothes washing standpipe trap and the laundry tray outlet is not more than 30 inches (762 mm) horizontally from the standpipe trap.
Writing Assignment #16
At what minimum height must an open vent pipe terminate above a roof?
shall terminate not less than 6 inches (150 mm) above the roof or 6 inches (150 mm) above the anticipated snow accumulation, whichever is greater. P3103.1.1
What if the roof is used for a purpose other than weather protection?
Where a roof is to be used for assembly, as a promenade, observation deck or sunbathing deck, or similar purposes, open pipes shall terminate not less than 7 feet above the roof. P3103.1.3
Writing Assignment #17
What minimum working clearances are required for energized equipment and panelboards?
As notated in E3405.1 A depth of 36", Width of 30" and a minimum height of 6’6" further explained in E3405.2 and E3405.3 and E3405.4.
How is clearance above a panelboard regulated?
Clearence above the panel board is regulated by E3405.1.b The working space shall be clear and unobstructed from the floor to a height of 6.5 feet or the height of the equipment, whichever is greater.
In reference to Writing Assignment 5.
Under what conditions is an unvented crawl space permitted?
In accordance with IRC 408.3, Unvented crawlspaces are allows with vapor retarder on ground & sealed to stem wall & space conditioned or continuous mechanical ventilation.
In reference to IRC course writing assignment #12
“What criteria must be used to regulate combustion air for solid-fuel-burning appliances? Oil-fired appliances? Gas-fired appliances??”
Combustion air for solid fuel burning appliances must be provided in accordance with the appliance manufacturer instructions. Oil fired appliances’ combustion air requirements are to be in accordance with NFPA 31. Combustion air requirements for gas fired appliances are noted in IRC Fuel Gas chapter 24.
Writing Assignment #18
In what locations are arc-fault circuit interrupter protection mandated?
Branch circuits that supply 120-volt, single-phase, 15- and 20-ampere outlets installed in kitchens, family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreations rooms, closets, hallways, laundry areas and similar rooms or areas shall be protected by any of the following: E3902.20
Written Assignment 6:
What ledger connection details are required for decks attached to exterior walls?
The deck framing must be positively attached to the building structure. The connection must address the both lateral and vertical loads, and the connection must be visible for inspection.
The scope of the IRC is for construction, alteration, movement, replacement or demolition of One and Two family dwellings, townhomes, not more than three stories high. The purpose for the IRC Code is to establish minimum requirements for a reasonable level of safety, strength, light, and ventilation, means of egress etc, during and after construction.
Dead loads are the weight of construction materials, built-ins, cladding and fixed service equipment used to build the home. Live loads are the weight of items created by occupancy, and do not include environmental lads such as snow, ice or wind loads.
In reference to IRC course writing assignment #13
“What is the maximum permitted length for an appliance fuel connector serving a range or domestic clothes dryer? Serving other appliances?”
The maximum permitted length of a flexible fuel connector is six feet when used for a domestic range or dryer as noted in IRC section G2422.1.2.1. For other appliances, an overall length of greater than six feet is allowed for a fuel connector provided the rigid metallic piping is used and sized as part of the piping system as a whole.
What is dead load and what is live load?
Dead load is the weight of all materials and affixed components of a structure that remain over time.
Live load is the additional component weight that is added to a structure after it is completed - such as people, furniture, storage, etc.
What is the definition of light-framed construction? A system of light gauge steel or repetitive wood framing members that form the horizontal and vertical structural elements constitute light framed construction.
In reference to IRC course writing assignment #14
“What is the temperature limit for water supplied to a shower? A bathtub? A whirlpool bathtub? A bidet?”
IRC section P2708.4 states fixtures serving showers, bathtubs or whirlpool tubs shall be equipped with a means to limit the maximum water temperature to 120 degrees F. IRC section P2721.2 states that Bidet water temperature must be set not to exceed 110 degrees F.